diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 9 | ||||
| -rw-r--r-- | init/main.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 5f0ef850e808..78cb2461012e 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1576,6 +1576,15 @@ config SLAB_FREELIST_RANDOM security feature reduces the predictability of the kernel slab allocator against heap overflows. +config SLAB_FREELIST_HARDENED + bool "Harden slab freelist metadata" + depends on SLUB + help + Many kernel heap attacks try to target slab cache metadata and + other infrastructure. This options makes minor performance + sacrifies to harden the kernel slab allocator against common + freelist exploit methods. + config SLUB_CPU_PARTIAL default y depends on SLUB && SMP diff --git a/init/main.c b/init/main.c index 8828fc148670..a21a1a8708a8 100644 --- a/init/main.c +++ b/init/main.c @@ -542,7 +542,7 @@ asmlinkage __visible void __init start_kernel(void) boot_cpu_state_init(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ - build_all_zonelists(NULL, NULL); + build_all_zonelists(NULL); page_alloc_init(); pr_notice("Kernel command line: %s\n", boot_command_line); |